31 mars 2012 - Pour diffusion immédiate : 100 ans de Lampis activé par Ralph J. Cordiner, président de la General Electric Company. L'ampoule est une réplique de Thomas Edison pratique la première lampe à incandescence et brûlera tout en haut d'Edison 24, qui est en permanence dans le hall de la General Electric à Schenectady, Laboratoire de recherche N.Y

• Contributeur: Keystone Press / Alamy Banque D'Images
• ID de l’image: E1403H
• Taille du fichier: 72,3 MB (1,1 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 4488 x 5632 px | 38 x 47,7 cm | 15 x 18,8 inches | 300dpi
• Date de la prise de vue: 31 mars 2012
• Photographe: KEYSTONE Pictures USA

Informations supplémentaires

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

Mar. 31, 2012 - For Immediate release: 100-Year Lampis turned on by Ralph J. Cordiner, president of the General Electric Company. The bulb is a replica of Thomas Edison's first practical incandescent lamp and will burn continously atop Edison's desk, which is on permanent display in the lobby of the General Electric Research Laboratory at Schenectady, N.Y. Improved materials and manufacturing techniques developed by General Electric give the replica and anticipated life of more than a century, and a special power source insures that the bulb will burn night and day without interruption ''at least until 2057''. The key to the lock-switch was entrusted to Dr. William D. Coolidge (left), director-emeritus of research at GE whose many scientific achievements include the development of ductile tungsten. This discovery made possible the efficient, long-life incandescent lamps now produced at the rate of over one billion per year. Also participating in the lamp-lightning ceremony was Dr. Guy Suits (right), GE vice president and director of research, who pointed out that, ''this 100-year bulb is fine as a forward-looking symbol, but is is no bargain in actual light-output-per-penny when compared to the efficiency of the ordinary bulbs now most widely sold. (Credit Image: Keystone Pictures USA/ZUMAPRESS)

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